Does the phrase "dawned on me" actually have a tense or is it just an expression?
"I know why you have been unable to do it. The reason is that it is physically impossible for you. It dawned on me just now."
See, if it does have a tense, I don't think this sentence makes sense, since "it dawned on me" at one point but I'm explaining reasons for being incapable in present tense. I think this sentence sounds like it dawned on me while I was explaining my reasoning, which couldn't have happened, right?
"It dawned on me that the reason you have been unable to do it is that it is physically impossible for you."
Like the first example, this doesn't make sense if "dawned on me" has a tense, right? Should I correct this to "It dawned on me that the reason you had been unable to do it was that it was physically impossible for you."
Is this correct at all? I don't even know where I should begin to fix it:
"It dawned on me that the fact that he lives there didn't bother me at all."